Xcode :How can I stop video in webview and still using webview - uiwebview

Question

if I use
-(void)viewWillDisappear:(BOOL)animated
{
[subView loadHTMLString:nil baseURL:nil];
}
my Webview can't worked
I try to do this
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
pageControlBeingUsed = NO;
[subView loadHTMLString:nil baseURL:nil];
}
I just want to go next page with paging scrollview and stop video on next page
this my code scrollview paging
book = [[NSMutableArray alloc] initWithObjects:#"page11",#"page12",#"page13",#"page14",#"page15", nil];
for (int i = 0; i < [book count]; i++) {
CGRect frame;
frame.origin.x = self.scrollView.frame.size.height * i;
frame.origin.y = 0;
frame.size = CGSizeMake(1024,768);
subView = [[UIWebView alloc] initWithFrame:frame];
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:[book objectAtIndex:i] ofType:#"html" inDirectory:#""]];
[subView loadRequest:[NSURLRequest requestWithURL:url]];
subView.scalesPageToFit = YES;
[scrollView setBounces:NO];
[scrollView addSubview:subView];
}
scrollView.contentSize = CGSizeMake(1024 * [book count], 768);
[scrollView setFrame:CGRectMake(0, 0, 1024, 768)];
Can I play video and stop on I next page? //Please advice
sorry my English isn't well

Answer 1

You need to load a blank page into the UIWebView to stop the audio:
[self.webView loadRequest:NSURLRequestFromString(#"about:blank")];
or
[self.webView loadHTMLString:#"" baseURL:nil];

Answer 2

Thank for Advice. I try this is works for me
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
pageControlBeingUsed = NO;
CGFloat pageWidth = self.scrollView.frame.size.width;
int page = floor((self.scrollView.contentOffset.x - pageWidth / 2) / pageWidth) + 1;
for(int i = 0; i < _pageAmount ; i++){
NSIndexPath *indexPath = [NSIndexPath indexPathForItem:i inSection:0];
[_collectionView cellForItemAtIndexPath:indexPath].backgroundColor = [UIColor clearColor];
}
currentPage = page;
if (currentPage > 0 && currentPage < [book count]-1) {
[[self.scrollView.subviews objectAtIndex:currentPage-1]reload];//
[[self.scrollView.subviews objectAtIndex:currentPage+1]reload];
}
if(self.interfaceOrientation == 1 || self.interfaceOrientation == 2){
NSIndexPath *indexPath = [NSIndexPath indexPathForItem:page inSection:0];
[_collectionView cellForItemAtIndexPath:indexPath].backgroundColor = [UIColor redColor];
}
}